EP3671098B1 - Wärmetauscher und verbindungselement für einem wärmetauscher. - Google Patents

Wärmetauscher und verbindungselement für einem wärmetauscher. Download PDF

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Publication number
EP3671098B1
EP3671098B1 EP18461644.9A EP18461644A EP3671098B1 EP 3671098 B1 EP3671098 B1 EP 3671098B1 EP 18461644 A EP18461644 A EP 18461644A EP 3671098 B1 EP3671098 B1 EP 3671098B1
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EP
European Patent Office
Prior art keywords
block
fluid channel
heat exchanger
connector
fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18461644.9A
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English (en)
French (fr)
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EP3671098A1 (de
Inventor
Michal BELZOWSKI
Karol POKRYWINSKI
Dawid Szostek
Lukasz STANEK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Autosystemy Sp zoo
Original Assignee
Valeo Autosystemy Sp zoo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Autosystemy Sp zoo filed Critical Valeo Autosystemy Sp zoo
Priority to EP18461644.9A priority Critical patent/EP3671098B1/de
Priority to PCT/EP2019/085628 priority patent/WO2020127248A1/en
Publication of EP3671098A1 publication Critical patent/EP3671098A1/de
Application granted granted Critical
Publication of EP3671098B1 publication Critical patent/EP3671098B1/de
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Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0251—Massive connectors, e.g. blocks; Plate-like connectors

Definitions

  • HVAC Heating, Ventilation, and Air Conditioning
  • HVAC systems are implemented in vehicles to provide comfort driving to the driver and occupants.
  • the HVAC system generally includes heat exchangers (i.e., evaporators, condensers), an expansion valve and a compressor.
  • the heat exchangers are connected to the expansion valve and the compressor through conduits for circulation of refrigerant.
  • the heat exchangers are connected to inlet/outlet conduits through a connector, which is a single piece of a metal alloy.
  • the HVAC system has to be configured in such a way so as to achieve efficient space utilization or address packaging issues. As the designs of vehicles change, configuration of components of the HVAC system also varies accordingly.
  • the connectors design may become problematic.
  • the conventional connectors are of single piece metal alloy or metal, their adaptability is low. For example, if the inlet/outlet conduits are repositioned to a different position or orientation from their original position or orientation, the conventional connectors become increasingly complicated to manufacture, which is related to increased costs.
  • the conventional connectors are manufactured by extruding the optimized shape and then milling the connecters to get desired geometry of the connectors. Further, the connectors may be machined to provide connection interfaces, such as threads.
  • connection interfaces such as threads.
  • An object of the present invention is to provide a heat exchanger with a connector that can be implemented in a HVAC system where the heat exchangers and conduits are positioned at various angles.
  • Another object of the present invention is to reduce mass of the connector to achieve lighter heat exchangers and reduce cost.
  • some elements or parameters may be indexed, such as a first element and a second element.
  • this indexation is only meant to differentiate and name elements which are similar but not identical, No idea of priority should be inferred from such indexation, as these terms may be switched without betraying the invention. Additionally, this indexation does not imply any order in mounting or use of the elements of the invention.
  • an embodiment of this invention herein provides a heat exchanger with a connector for introducing heat exchange fluid to or receive heat exchanger fluid from the heat exchanger.
  • the connector includes a first block and a second block.
  • the first block further includes a first fluid channel and a second fluid channel that is in a fluid communication with each other.
  • the second block further includes a solid portion having a protruded portion protruded from the solid portion.
  • the protruded portion further includes a primary fluid channel. Further, at least a portion of the protruded portion protrudes into the second fluid channel of the first block to secure the second block with the first block in a desired orientation, and the secondary fluid channel of the second block is being in fluid communication with the second fluid channel of the first block.
  • the first fluid channel is perpendicularly connected with the second fluid channel.
  • the first fluid channel can be connected with the second fluid channel in such a way that the first fluid channel is oblique with respect to the second fluid channel.
  • the second block further includes a secondary fluid channel that is in fluid communication with the primary fluid channel.
  • the primary fluid channel is perpendicularly connected with the secondary fluid channel.
  • the primary fluid channel can be connected with the secondary fluid channel in such a way that the primary fluid channel is oblique with respect to the second fluid channel.
  • the second fluid channel is a hollow through-hole having a first end and a second end, and the first fluid channel is connected fluidically to the second fluid channel between the first end and the second end.
  • the connector further includes a closing cap adapted to engage with the second end of the second fluid channel provided in the first block, at the same time, the second block is secured with the first end of the second fluid channel provided in the first block.
  • the protruded portion has a circular cross-section corresponding to the cross-section of the second fluid channel.
  • the second block further includes at least two locking projection provided, in parallel to the protruded portion, on the solid portion of the second block for retaining the angular position between the first block and the second block.
  • the first block further a plurality of rabbets provided on the circumference of the second fluid channel of the first block to receive the locking projections for restricting movement of the second block with respect to the first block.
  • the connector includes a brazing ring provided on the circumference of the protruded portion of the second block to facilitate connection between the first block and the second block.
  • the first block and the second block are manufactured by extrusion process.
  • the second block is connected to the manifold of the heat exchanger to introduce the heat exchange fluid to or receive the heat exchange fluid from the heat exchanger.
  • a connector for introducing heat exchange fluid to or receive heat exchanger fluid from a heat exchanger.
  • the connector Includes a first block and a second block.
  • the first block further includes a first fluid channel and a second fluid channel that is in a fluid communication with each other.
  • the second block further includes a solid portion having a protruded portion protruded from the solid portion.
  • the protruded portion further includes a primary fluid channel. Further, at least a portion of the protruded portion protrudes into the second fluid channel of the first block to secure the second block with the first block in a desired orientation, and the secondary fluid channel of the second block is being in fluid communication with the second fluid channel of the first block.
  • the connector includes a first block and a second block that is in a fluid communication with the first block.
  • the first block is connected to the second block in a desired orientation to enable the fluid communication between the first block and the second block.
  • the first block may be connected to conduits which carry the heat exchange fluid.
  • the second block may be connected to a manifold of the heat exchanger. The first block may configure a fluid path to communicate the heat exchange fluid between first block and the second block.
  • the second block may configure another fluid path to communicate the heat exchange fluid received from the first block to the heat exchanger.
  • the connector is of two blocks and the blocks are to be interconnected in the desired orientation, the connector can be used in any HVAC system having the heat exchanger and the conduits positioned in different orientations and different positions.
  • Fig. 1 illustrates a schematic view of a heat exchanger manifold 16 of a heat exchanger that is connected with a conduit through a connector 100, in accordance with an embodiment of the present subject matter.
  • the connector 100 is provided between the conduit and a manifold 16 of the heat exchanger to connect fluidically the conduit to the heat exchanger. Further, the connector 100 is configured to couple the heat exchanger with the conduit positioned at an angle with respect to the heat exchanger.
  • the connector 100 comprises a first block 102 and a second block 108 that is in a fluid communication with the first block 102.
  • the first block 102 is connected with the second block 108 in such a way that the connector 100 enables to connect the heat exchanger with the conduit obliquely positioned with respect to the heat exchanger.
  • the first block 102 may be connected to the conduit of the HVAC system, and the second block 108 may connected to the manifold 16 of the heat exchanger.
  • the conduit may be an inlet conduit or an outlet conduit. Further, construction of the connector 100 is explained in the forthcoming figures.
  • the connector 100 is adapted to introduce heat exchange fluid to or receive heat exchange fluid from the heat exchanger.
  • the heat exchange fluid can be a refrigerant.
  • the connector 100 may include the first block 102 and the second block 108 which is in a fluid communication with the first block 102.
  • the first block 102 includes a first fluid channel 104, and a second fluid channel 106 which are in a fluid communication with each other.
  • the first block 102 may include more than one first fluid channel 104 being fluidically connected with the second fluid channel 106.
  • first fluid channel 104 may be formed in a transverse axis with respect to the first block 102, and the second fluid channel 106 may be formed in an axial direction with respect to the first block 102.
  • the first fluid channel 104 and the second fluid channel 106 are formed in the first block 102 to enable the heat exchange fluid to flow therein.
  • the second fluid channel 106 is a hollow through-hole having a first end 126 and a second end 128.
  • the first fluid channel 104 may be fluidically connected in between the first end 126 and the second end 128 of the second fluid channel 106.
  • the second block 108 further includes a solid portion 110, and a protruded portion 114 protruded from the solid portion 110.
  • the protruded portion 114 comprises a primary fluid channel 112.
  • the solid portion 110 may further include a secondary fluid channel 116 adapted to introduce the heat exchange fluid to or receive the heat exchange fluid from the primary channel 112.
  • the primary fluid channel 112 and the secondary fluid channel 116 are oblique to each other.
  • the primary fluid channel 112 and the secondary fluid channel 116 are perpendicular to each other.
  • the primary fluid channel 112 is fluidically connected to the secondary fluid channel 116 at an angle.
  • the solid portion 110 may include more than one secondary fluid channel 116 fluidically connected to the primary fluid channel 112. It is also envisaged that the primary fluid channel 112 is directly connected with the manifold 16 in a straight line, thereby omitting the necessity of implementing the secondary fluid channel 116.
  • the first block 102 and the second block 108 are immobilized in a desired angular orientation to each other during brazing.
  • the second block 108 may be arranged with the first block 102 in a desired orientation through the protruded portion 114.
  • at least a portion of the protruded portion 114 is adapted to protrude at least partially into the second fluid channel 106 of the first block 102 to secure the second block 108 with the first block 102 in the desired orientation.
  • the protruded portion 114 is entirely protruded into the second fluid channel 106 of the first block 102 to secure the second block 108 with the first block 102 in the desired orientation.
  • the protruded portion 114 may be received into any one of the first end 126 or a second end 128 of the second fluid channel 106 of the first block 102.
  • the desired orientation of the second block 108 with respect to the first block 102 may be changed according to requirement, particularly relative position and orientation of the conduit with respect to the heat exchanger of the HVAC system.
  • the second block 108 is secured with the first block 102 in such a way that the primary fluid channel 112 is in a fluid communication with the second fluid channel 106 of the first block 102 to facilitate fluid flow therein.
  • the protruded portion 114 has a circular cross-section corresponding to the cross-section of the second fluid channel 106, thereby enabling easy insertion and adjustable angular relationship.
  • different shapes of protrusion are also possible to implement as the protruded portion 114, as long as the protruded portion 114 enable selecting various angular arrangements between the first block 102 and the second block 108.
  • the second block 108 may be connected with the first block 102 and at the same time enforcing angular position between the first block 102 and the second block 108, through various means, e.g. by locking mechanisms.
  • the connector 100 further may include a closing cap 118 adapted to engage with at least one end of the second fluid channel 106 of the first block 102 based on securing end of the second block 108.
  • a closing cap 118 adapted to engage with at least one end of the second fluid channel 106 of the first block 102 based on securing end of the second block 108.
  • the closing cap 118 is adapted to engage with the second end 128 of the second fluid channel 106 of the first block 102 and vice versa.
  • the closing cap 118 is a baffle.
  • first block 102 and the second block 108 may be brazed to retain the second block 108 with the first block 102.
  • a brazing ring 120 is provided on the circumference of the protruded portion 114 of the second block 108.
  • the connector 100 may include two second blocks 108 adapted to be secured with the first end 126 and the second end 128 of the first block 102 respectively, in case the connector 100 is implemented to connect two heat exchangers with the two different conduits.
  • the closing cap 118 is replaced with another second block as shown in Fig. 2B .
  • the configuration illustrated in Fig.2B may be especially useful when there is multiple heat exchanger cores, neighboring each other with their corresponding manifolds, so that the connector 100 can be placed between the heat exchanger cores and connect them fluidically.
  • the design of the connector 100 may be slightly altered to accommodate collecting the heat exchange fluid or introducing the heat exchange fluid to their openings at the same time.
  • the protruded portions 114 then might be rearranged to be longer (i.e. to form so called jumperlines), with adaptation of openings and connecting arrangements on the second blocks 108 to connect fluidically to manifold at desired places. In such case, the angular flexibility is still provided by the connector 100.
  • the connector 100 may further include a locking mechanism for restricting movement of the second block 108 with respect to the first block 102.
  • the locking mechanism may be a locking projection-rabbets setup.
  • one or more locking projections 124 are provided, in parallel to the protruded portion 114, on the solid portion of the second block 108 for retaining angular position between the first block 102 and the second block 108.
  • the rabbets 122 are provided on the circumference of the second fluid channel 106 of the first block 102 in such a way that the rabbets 122 are adapted to receive the one or more locking projections when the second block 108 is secured with the first block 102.
  • the one or more locking projections 124 being a rectangular projection adapted to retain angular position between the first block 102 and the second block 108 by protruding into the rabbets 122 provided in the first block 122.
  • the one or more locking projections 124 may be provided in the second block 108, and the rabbets may be provided in the first block 102.
  • provision of locking means as described above enables simplified adaptation of the angular orientation by modifying parameters of the shape to require minimum, if any, involvement of machining.
  • Fig. 3A illustrates a cross-sectional view of the first block 102 of the connector 100, in accordance with an embodiment of the present subject matter.
  • the cross-sectional view of the first block 102 clearly depicts position of the first fluid channel 104 and the second fluid channel 106.
  • the first fluid channel 104 is fluidically connected in-between the first end 126 and the second end 128 of the second fluid channel 106 to provide fluid communication between the first fluid channel 104 and the second fluid channel 106.
  • the first fluid channel 104 is connected to the second fluid channel 106 in such a way that the first fluid channel 104 is perpendicular to the second fluid channel 106.
  • the first fluid channel 104 is connected to the second fluid channel 106 at angle ranging from 45° to 135°.
  • Fig. 3B illustrates a cross-sectional view of the second block 108 of the connector 100, in accordance with an embodiment of the present subject matter.
  • the cross-sectional view of the second block 108 clearly depicts position of the primary fluid channel 112 and the secondary fluid channel 116.
  • the primary fluid channel 112 is fluidically connected to the secondary fluid channel 116 to provide fluid communication between the primary fluid channel 112 and the secondary fluid channel 116.
  • the primary fluid channel 112 is connected to the secondary fluid channel 116 in such a way that the primary fluid channel 112 is perpendicular to the secondary fluid channel 116.
  • the primary fluid channel 112 is connected to the secondary fluid channel 116 at angle ranging from 45° to 135 0 .
  • Fig. 4 presents a perspective view of the connector 100 after assembling the first block 102 and the second block 108 together at a desired orientation, in accordance with an embodiment of the present subject matter.
  • the first block 102 is angularly enforced with the second block 108 at angle to form the connector 100.
  • the first fluid channel 104 and the secondary fluid channel 116 are in a fluid communication through the second fluid channel 106 along with the primary fluid channel 112.
  • the connector 100 enables the heat exchange fluid flow to the heat exchanger through the first fluid channel 104, the second fluid channel 106, the primary fluid channel 112 and the secondary fluid channel 116.
  • the heat exchange fluid is a refrigerant that includes, but not limited to, R11, R12, R113, R114, R115, R22, R123, R134a, R404a, R407C, and R410a.
  • the connector 100 is manufactured by an extrusion process as two blocks. In another example, the connector 100 can be manufactured as more than two blocks by the extrusion process. As the connector 100 manufactured as two blocks, i.e., the first block 102 and the second block 108, the blocks can be secured in different angles thereby achieving different orientation of the connector 100.
  • the first block 102 is connected to the inlet/outlet conduits to communicate the heat exchange fluid between the first block 102 and the second block 108.
  • the second block 108 is connected to the manifold 16 of the heat exchanger to communicate the heat exchange fluid between the second block 108 and the heat exchanger.
  • the first block 102 and the second block 108 may be secured together by a brazing process or by gluing.
  • As the connector 100 manufactured as two blocks no machining process required to achieve the desired orientation thereby reducing weight of the connector 100 by -24-28% as compared to the conventional connectors.
  • the reduction of mass of the connector 100 leads to reduction mass of the heat exchanger which is better in terms of mechanical behavior (i.e., vibration resistance).
  • the conventional blocks are difficult to be properly brazed due to weight and need additional processes to make brazing process feasible (e.g. sand blasting of parts to improve heat transfer in brazing furnace). Reduction of weight and the material which has to be used allows to mitigate those problems.
  • the connector 100 is manufactured from a group including, but not limited to, a metal or metal alloy.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (14)

  1. Verbindungselement (100) zum Einleiten von Wärmeaustauschfluid in einen Wärmetauscher oder zum Aufnehmen von Wärmeaustauschfluid aus einem Wärmetauscher, wobei das Verbindungselement (100) umfasst:
    einen ersten Block (102), umfassend einen ersten Fluidkanal (104) und einen zweiten Fluidkanal (106), die in einer Fluidverbindung miteinander stehen;
    einen zweiten Block (108), der einen massiven Abschnitt (110) umfasst, der einen vorstehenden Abschnitt (114) umfasst, wobei der vorstehende Abschnitt (114) einen primären Fluidkanal (112) umfasst, und wobei mindestens ein Abschnitt des vorstehenden Abschnitts (114) in den zweiten Fluidkanal (106) des ersten Blocks (102) hineinragt, zu dem Zweck, den zweiten Block (108) am ersten Block (102) in einer gewünschten Ausrichtung zu sichern, wobei der primäre Fluidkanal (116) des zweiten Blocks (108) in Fluidverbindung mit dem zweiten Fluidkanal (106) des ersten Blocks (102) steht, dadurch gekennzeichnet, dass der zweite Block (108) mindestens zwei Verriegelungsvorsprünge (124) beinhaltet, die parallel zum vorstehenden Abschnitt (114) am massiven Abschnitt (110) des zweiten Blocks (108) zu dem Zweck bereitgestellt sind, die Winkelposition zwischen dem ersten Block und dem zweiten Block (108) zu halten.
  2. Wärmetauscher mit einem Verbindungselement (100) nach Anspruch 1.
  3. Wärmetauscher nach Anspruch 2, wobei der erste Fluidkanal (104) senkrecht mit dem zweiten Fluidkanal (106) verbunden ist.
  4. Wärmetauscher nach Anspruch 2, wobei der erste Fluidkanal (104) mit dem zweiten Fluidkanal (106) derart verbunden ist, dass der erste Fluidkanal (104) schräg zum zweiten Fluidkanal (106) verläuft.
  5. Wärmetauscher nach einem der vorhergehenden Ansprüche, wobei der zweite Block (108) ferner einen sekundären Fluidkanal (116) umfasst, der in Fluidverbindung mit dem primären Fluidkanal (112) steht.
  6. Wärmetauscher nach Anspruch 5, wobei der primäre Fluidkanal (112) senkrecht mit dem sekundären Fluidkanal (116) verbunden ist.
  7. Wärmetauscher nach Anspruch 5, wobei der primäre Fluidkanal (112) mit dem sekundären Fluidkanal (116) derart verbunden ist, dass der primäre Fluidkanal (112) schräg zum zweiten Fluidkanal (116) verläuft.
  8. Wärmetauscher nach einem der vorhergehenden Ansprüche, wobei der zweite Fluidkanal (106) ein hohles Durchgangsloch mit einem ersten Ende (126) und einem zweiten Ende (128) ist, wobei der erste Fluidkanal (104) mit dem zweiten Fluidkanal (106) zwischen dem ersten Ende (126) und dem zweiten Ende (128) fluidisch verbunden ist.
  9. Wärmetauscher nach Anspruch 8, ferner umfassend eine Verschlusskappe (118), die dazu eingerichtet ist, mit dem zweiten Ende (128) des im ersten Block (102) bereitgestellten zweiten Fluidkanals (106) in Eingriff zu kommen, während der zweite Block (108) am im ersten Block (102) bereitgestellten ersten Ende (126) des zweiten Fluidkanals (106) gesichert ist.
  10. Wärmetauscher nach einem der vorhergehenden Ansprüche, wobei der vorstehende Abschnitt (114) einen kreisförmigen Querschnitt aufweist, der dem Querschnitt des zweiten Fluidkanals (106) entspricht.
  11. Wärmetauscher nach einem der vorhergehenden Ansprüche, wobei der erste Block (102) eine Vielzahl von Fasen (122) umfasst, die am Umfang des zweiten Fluidkanals (106) des ersten Blocks (102) bereitgestellt und dazu eingerichtet sind, die Verriegelungsvorsprünge (124) aufzunehmen, zu dem Zweck, Bewegung des zweiten Blocks (108) in Bezug auf den ersten Block (102) zu begrenzen.
  12. Wärmetauscher nach einem der vorhergehenden Ansprüche, ferner umfassend einen Hartlötring (120), der am Umfang des vorstehenden Abschnitts (114) des zweiten Blocks (108) zum Erleichtern der Verbindung zwischen dem ersten Block (102) und dem zweiten Block (108) bereitgestellt ist.
  13. Wärmetauscher nach einem der vorhergehenden Ansprüche, wobei der erste Block (102) und der zweite Block (108) im Extrusionsverfahren hergestellt sind.
  14. Wärmetauscher, umfassend das Verbindungselement (100) nach einem der vorhergehenden Ansprüche, wobei der zweite Block (108) mit einer Sammelleitung des Wärmetauschers verbunden ist, zu dem Zweck, das Wärmeaustauschfluid in den Wärmetauscher einzuleiten oder das Wärmeaustauschfluid aus dem Wärmetauscher aufzunehmen.
EP18461644.9A 2018-12-17 2018-12-17 Wärmetauscher und verbindungselement für einem wärmetauscher. Active EP3671098B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18461644.9A EP3671098B1 (de) 2018-12-17 2018-12-17 Wärmetauscher und verbindungselement für einem wärmetauscher.
PCT/EP2019/085628 WO2020127248A1 (en) 2018-12-17 2019-12-17 A heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18461644.9A EP3671098B1 (de) 2018-12-17 2018-12-17 Wärmetauscher und verbindungselement für einem wärmetauscher.

Publications (2)

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EP3671098A1 EP3671098A1 (de) 2020-06-24
EP3671098B1 true EP3671098B1 (de) 2022-02-23

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WO (1) WO2020127248A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3982076A1 (de) * 2020-10-07 2022-04-13 Valeo Autosystemy SP. Z.O.O. Wärmetauscher mit einem anschlussblock

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5163716A (en) * 1991-10-25 1992-11-17 General Motors Corporation Condenser connector assembly for connecting refrigerant line
JPH09196508A (ja) * 1996-01-24 1997-07-31 Calsonic Corp 接続用配管を備えた熱交換器用ヘッダパイプ
WO2017032405A1 (en) * 2015-08-24 2017-03-02 Mahle International Gmbh Heat exchanger

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WO2020127248A1 (en) 2020-06-25

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